86081670 has 64 divisors (see below), whose sum is σ = 230791680. Its totient is φ = 22831200.

The previous prime is 86081669. The next prime is 86081713. The reversal of 86081670 is 7618068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56215 + ... + 57725.

It is an arithmetic number, because the mean of its divisors is an integer number (3606120).

Almost surely, 2^86081670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86081670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115395840).

86081670 is an abundant number, since it is smaller than the sum of its proper divisors (144710010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86081670 is a wasteful number, since it uses less digits than its factorization.

86081670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1732 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 86081670 is about 9278.0208018736. The cubic root of 86081670 is about 441.5401775355.

The spelling of 86081670 in words is "eighty-six million, eighty-one thousand, six hundred seventy".